Antique radios, Old Time Radios
T115a
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Country:
Germany
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| Identical to |
T115a
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| Similar
Tubes |
Other base:
T115
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| First Source
(s) |
22.Oct.1939 : Funkschau 1939 #41
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| Base |
SPECIAL TUBEBASE in general
Top contact screw type.
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| Filament |
Vf 2.8 Volts / If 0.5 Ampere / Direct / Battery = |
| Description |
Electrometer tetrode with space charge grid for high impedance measurements
Text in other
languages (may
differ)
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T115a: RTT Schwandt
Günther Stabe † 19.8.20
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